Data used to generate figures in "Nano-Scale Mapping of Bromide segregation on Cross-sections of Complex Hybrid Perovskite Photovoltaic Films Using Secondary Electron Hyperspectral Imaging in The Scanning Electron Microscope" published in ACS Omega, 2017, 2 (5), pp 2126–2133 DOI: <a href="http://doi.org/10.1021/acsomega.7b00265">10.1021/acsomega.7b00265</a>. Data organised in to a file per figure in the main paper. See main paper for detailed discussion of the data.